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CASH EQUIVALENTS AND MARKETABLE SECURITIES - Schedule of Investments (Details) $ in Thousands | Sep. 30, 2021 USD ($)
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Debt Securities, Available-for-sale [Line Items] |
Amortized Cost | $ 956,183
Gross Unrealized Gains | 35
Gross Unrealized Losses | (416)
Fair Value | 955,802
Cash and Cash Equivalents |
Debt Securities, Available-for-sale [Line Items] |
Fair Value | 447,225
Marketable Securities |
Debt Securities, Available-for-sale [Line Items] |
Fair Value | 508,577
Commercial paper |
Debt Securities, Available-for-sale [Line Items] |
Amortized Cost | 148,943
Gross Unrealized Gains | 14
Gross Unrealized Losses | 0
Fair Value | 148,957
Commercial paper | Cash and Cash Equivalents |
Debt Securities, Available-for-sale [Line Items] |
Fair Value | 113,993
Commercial paper | Marketable Securities |
Debt Securities, Available-for-sale [Line Items] |
Fair Value | 34,964
Corporate notes and bonds |
Debt Securities, Available-for-sale [Line Items] |
Amortized Cost | 179,510
Gross Unrealized Gains | 7
Gross Unrealized Losses | (105)
Fair Value | 179,412
Corporate notes and bonds | Cash and Cash Equivalents |
Debt Securities, Available-for-sale [Line Items] |
Fair Value | 8,245
Corporate notes and bonds | Marketable Securities |
Debt Securities, Available-for-sale [Line Items] |
Fair Value | 171,167
U.S. Treasuries |
Debt Securities, Available-for-sale [Line Items] |
Amortized Cost | 339,973
Gross Unrealized Gains | 14
Gross Unrealized Losses | (3)
Fair Value | 339,984
U.S. Treasuries | Cash and Cash Equivalents |
Debt Securities, Available-for-sale [Line Items] |
Fair Value | 324,987
U.S. Treasuries | Marketable Securities |
Debt Securities, Available-for-sale [Line Items] |
Fair Value | 14,997
U.S. Government agencies |
Debt Securities, Available-for-sale [Line Items] |
Amortized Cost | 287,757
Gross Unrealized Gains | 0
Gross Unrealized Losses | (308)
Fair Value | 287,449
U.S. Government agencies | Cash and Cash Equivalents |
Debt Securities, Available-for-sale [Line Items] |
Fair Value | 0
U.S. Government agencies | Marketable Securities |
Debt Securities, Available-for-sale [Line Items] |
Fair Value | $ 287,449

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 + Details
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- Definition Amortized cost excluding accrued interest, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + Details
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